Panasonic LP-GS Series Operation Manual page 348

27 Troubleshooting
E720 Cause:
The counter value may not be updated because the laser marking
system was turned off during the marking process.
Remedy:
• Check the current value of the counter.
• Do not turn off the laser marking system during the marking.
E721
Cause:
The marking data could not be saved correctly because the laser
marking system was turned off during saving.
Remedy:
• Check the file and the setting values.
• Overwrite the file.
• Do not turn off the laser marking system while saving a file.
E750 Cause:
The trigger signal is invalid. The trigger signal was input during trigger
processing.
Remedy:
• To input a trigger signal, the marking ready output READY OUT (Y5)
must be ON.
• Do not input the trigger signal while the trigger processing output
PROCESSING OUT (Y10) is ON.
• Make sure the switch or the sensor connected to TRIGGER IN (X5)
of the TERMINAL connector operates without chattering.
• Check the connection of the external devices to the I/O terminals or
the communication port.
E751
Cause:
The trigger signal is invalid. The marking trigger signal is input while the
marking ready output is OFF.
Remedy:
• To input a trigger signal, the marking ready output READY OUT (Y5)
must be ON.
• Do not input the trigger signal while the trigger processing output
PROCESSING OUT (Y10) is ON.
• Make sure the switch or the sensor connected to TRIGGER IN (X5)
of the TERMINAL connector operates without chattering.
• Check the connection of the external devices to the I/O terminals or
the communication port.
348 ME-NAVIS2-OP-1